Single phase 1:1 Online Tower & Rack UPS, capacity range 1-20KVA; &Three phase 3:1 Online Tower UPS, capacity range 10-40KVA; Features: Online double-conversion UPS with fully DSP controlled technology. High input and output power factor, PF=1(6-10KVA),efficiency up to 95% , Self-adjusting output frequency and network management, Flexible battery setting, output transformer customized. Application: Computers, telecommunication equipment and other sensitive devices Etc. Certificate: CE, RoHS.